CN108883654A - Micro-optic device with double sided optical effect - Google Patents
Micro-optic device with double sided optical effect Download PDFInfo
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- CN108883654A CN108883654A CN201780022861.1A CN201780022861A CN108883654A CN 108883654 A CN108883654 A CN 108883654A CN 201780022861 A CN201780022861 A CN 201780022861A CN 108883654 A CN108883654 A CN 108883654A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/29—Securities; Bank notes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/324—Reliefs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/342—Moiré effects
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0037—Arrays characterized by the distribution or form of lenses
- G02B3/005—Arrays characterized by the distribution or form of lenses arranged along a single direction only, e.g. lenticular sheets
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0037—Arrays characterized by the distribution or form of lenses
- G02B3/0056—Arrays characterized by the distribution or form of lenses arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0037—Arrays characterized by the distribution or form of lenses
- G02B3/0062—Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between
- G02B3/0068—Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between arranged in a single integral body or plate, e.g. laminates or hybrid structures with other optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/30—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving parallax barriers
Landscapes
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Finance (AREA)
- Credit Cards Or The Like (AREA)
- Optical Integrated Circuits (AREA)
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Abstract
A kind of micro-optic device, including：Transparent substrate；The first lens element on the first side of substrate shows the first image-forming component in second side of substrate；And the second lens element in second side of substrate, show the second image-forming component on the first side of substrate.
Description
Technical field
The present invention relates to a kind of micro-optic devices for micro-optics image presentation system.The embodiment of the present invention can be used
Make the safety device of banknote and coin, credit card, check, passport, identity card etc., and with the exemplary, non-limitative application phase
It will be convenient for closing the ground description present invention.
Background technique
It is well known that many banknotes and other secure files all have safety device in the world, which is generated
It can be realized the optical effect of the visual verification of banknote.It is some including concentrating element, such as lenticule in these safety devices
Or micro mirror, for sampling and amplifying image-forming component and project can image by user from the first view.
In traditional micro-optics security feature in polymer banknote, lenticule and image-forming component are typically applied to polymer
The opposite side of substrate, lenticule and the image-forming component interact to project image onto user.In other words, polymeric substrate
Itself forms a part of each lenticule, is used as optical interval object, and the light of the thickness by banknote is focused from micro- image layer
To eyes.
Although in filament provide lens compared with this have the advantages that it is certain, can be used bigger lens so as to
Enough generate more complicated image and effect, the shortcomings that this configuration is that this feature occupies the substrate on polymer banknote two sides
Face, but a lateral projection of the image from polymer banknote can only be made.That is, micro-optics effect usually only can be from the one of banknote
Side (that is, even if they occupy the space on substrate two sides, the side with lens) viewing.
In addition, the real estate occupied by image-forming component generally can not use typical banknote design drawing chromatography, because doing so
It can damage only from the appearance of the visible optical effect in lens side.In other words, it can see set impression from lens side, especially such as
The chromatography color that fruit uses is dark.This phenomenon referred to as " has an X-rayed " and can strictly limit which design can be in banknote
This shadow region domain in use, wherein the image-forming component of lens security feature is located therein.
It is intended to provide a kind of micro-optic device for being used in particular for secure file, preferably using can be used for security/authentication
The space of purpose, and micro-optic device is more reasonably integrated into secure file from design angle.
It is also expected to providing a kind of micro-optic device for being used in particular for secure file, optical effect can be generated, the optics
Effect can be from the two sides of secure file to be used for security/authentication purpose.
It is also expected to provide a kind of micro-optic device, improve or overcome known micro-optic device one or more disadvantages or
It is inconvenient.
Summary of the invention
One aspect of the present invention provides a kind of micro-optic device, including：Transparent substrate；On the first side of substrate
Multiple first display elements amplify the first image-forming component in second side of substrate；And it is multiple in second side of substrate
Second display element amplifies the second image-forming component on the first side of substrate, wherein display element and imaging on every side
Element is made of the band of display area staggered with the band of image-region.
In one or more embodiments, the display element on every side and image-forming component are separated from each other and are scattered in
So that the display element on every side amplifies the image-forming component of the substantially stationary ratio on the other side, it is flat in substrate but regardless of them
Relative phase in two mutually orthogonal directions or offset in face.
In one or more embodiments, multiple display elements form sampling screen to adopt to multiple image-forming components
Sample.
In one or more embodiments, multiple display elements are grid lines, form disparity barrier and enable to
Three-dimensional, more views, interlacing or entirety or moir é pattern are watched in image-forming component.
In one or more embodiments, multiple display elements form hexagon or other geometric array translucent elements.
In one or more embodiments, multiple display elements are printed.
In one or more embodiments, multiple display elements are formed by coining.
In one or more embodiments, multiple display elements are the lens that multiple image-forming components are sampled and amplified
Element.
In one or more embodiments, lens element is to reflect and focus light in focus.
In one or more embodiments, lens element is diffraction and causes the constructive interference of light in focal point.
In one or more embodiments, lens element is coated with transparent material layer, which has and lens
The different refractive index of element.
In one or more embodiments, lens element is formed by coining.
In one or more embodiments, lens element applies as foil.
In one or more embodiments, multiple image-forming components are formed by printing.
In one or more embodiments, multiple image-forming components are printed to some display element up or downs face.
In one or more embodiments, multiple image-forming components are formed by coining.
In one or more embodiments, image-forming component is coated with transparent material layer, which has and formation
The different refractive index of the material of image-forming component.
In one or more embodiments, image-forming component applies as foil.
In one or more embodiments, picture structure and display structure are integrated into overall structure.
In one or more embodiments, picture structure and display structure are formed by individual imprinting actions.
In one or more embodiments, picture structure and display structure are formed by single imprinting actions.
In one or more embodiments, display structure is formed in the top or following of multiple image-forming components.
In one or more embodiments, display structure is formed on the top of multiple image-forming components, and picture structure
It is formed in gasket, and is then delivered to safety device.
In one or more embodiments, multiple image-forming components are located in the depth of focus of lens element.
In one or more embodiments, multiple image-forming components on every side of substrate are located in single imaging plane.
In one or more embodiments, multiple image-forming components are recessed relative to adjacent lens element.
In one or more embodiments, multiple image-forming components are relative to adjacent lens element protrusion.
In one or more embodiments, multiple image-forming components have and one or more adjacent lens elements substantially phase
Same height.
In one or more embodiments, multiple image-forming components form planar pattern.
In one or more embodiments, multiple image-forming components form diffraction grating.
In one or more embodiments, multiple image-forming components form light diffusion or light extinguishes pattern.
In one or more embodiments, one or more display elements and image-forming component colored ink chromatography.
In one or more embodiments, the spacing and the lens cells on side for selecting the lens element on every side
Orientation of the part relative to the lens element on the other side, so that
(i) More's enlarged drawing of the periphery edge of lens is greater than the optical effect image on every side；Or
(ii) More's enlarged drawing of the periphery edge of lens is less than the recognizable image of naked eyes.
In one or more embodiments, More's enlarged drawing of the periphery edge of lens is less than 0.1mm.
In one or more embodiments, first group first of lens element and the formation of first group of second display element are formed
The lens element of display element is differently filled.
In one or more embodiments, (i) first group of first display element and first group of second image-forming component and
(ii) one or two in first group of second display element and first group of first image-forming component is distributed in first area, so that
On every side of substrate lens element amplification substrate the other side on substantially fixed ratio image, but regardless of they
Relative phase or offset in two mutually orthogonal directions.
In one or more embodiments, substantially fixed ratio is 25%, and two mutually orthogonal directions are
The machine during sheet material feeding for applying the roll-to-roll process of lens and/or image or for applying lens and/or image
Device vertical and horizontal direction.
In one or more embodiments, the lens on every side and imaging region are by staggered with the band of image-region
The band of lens area forms, and wherein the band on the band and the other side on side is not parallel.
In one or more embodiments, the staggeredly band if using Rectangle filling lens on two sides, on side
It is orthogonal with the staggeredly band on the other side.
In one or more embodiments, the staggeredly item if filling lens using hexagon on two sides, on side
Band rotates 60 degree relative to the staggeredly band on the other side.
In one or more embodiments, if using cylindrical lens on two sides, staggeredly band on side with
Staggeredly band on the other side is orthogonal.
In one or more embodiments, if using cylindrical lens on two sides, cylindrical shaft on side and another
Cylindrical shaft on side is orthogonal.
Definition
Secure file or fractional currency
As used herein, term secure file and fractional currency include all types of vital documents and fractional currency and knowledge
Other file, it is including but not limited to following：Money item, credit card, check, passport, identity card, the security of such as banknote and coin
With stock, driving license, the travel document of document of title, such as air ticket and train ticket, badge and admission ticket, births & deaths and knot
Wedding certificate and school report.
The present invention especially but is not exclusively suitable for safety device, is used for checking article, file or fractional currency (such as banknote),
Or identification file (such as identity card or passport, the substrate by being applied with one or more layers printing are formed).
Broadly, the present invention can be applied to micro-optic device, and in various embodiments, which is suitable for clothing
Clothes, skin care item, file, printed matter, manufactured goods, commodity sale system, pack, sell an exhibition booth design, publication, advertising device,
The vision enhancement of sports goods, secure file and fractional currency, financial sffairs paper and transactional cards and other commodity.
Safety device or feature
As it is used herein, term safety device or feature include be intended to protect secure file or fractional currency from forging,
Any one of a large amount of safety devices for replicating, change or distorting, elements or features.Safety device or feature can be set
In the substrate of secure file or on substrate, or it is arranged in the one or more layers for being applied to base substrate or on layer, and
It can take various forms, the safety line in such as layer of insertion secure file；Safety ink, such as fluorescent ink, light-emitting oil
Ink or phosphor ink, metal ink, rainbow color ink, photochromic ink, thermochromatic inks, water color shifting ink or discoloration oil
Ink；Printing or embossed features, including release structure；Interfere layer；Liquid-crystal apparatus；Lens and lentoid；Optically variable device
(OVD), such as diffraction device, including diffraction gradient, hologram and diffraction optical element (DOE).
Substrate
As it is used herein, term " substrate " refers to form the basic material of secure file or fractional currency.Basic material can
To be paper or other fibrous materials, such as cellulose；Plastics or polymer material, including but not limited to polypropylene (PP), poly- second
Alkene (PE), polycarbonate (PC), polyvinyl chloride (PVC), polyethylene terephthalate (PET), Biaially oriented polypropylene
(BOPP)；Two or more materials (such as laminate of paper and at least one plastic material) or two or more polymerization
The composite material of material.
Transparent window and half-window
As it is used herein, term window refer to it is saturating in secure file compared with the opaque region that is applied to of printing
Bright or translucent area.Window can be it is fully transparent, to allow the transmission of light to be essentially unaffected or it can be with
Be it is partially transparent or translucent, partly allow light transmission but do not allow that object can be clearly seen by window area.
At least one opaque layer that window area can be formed in the region of window area by omission is formed in poly-
It closes in object secure file, which has at least one layer of transparent polymer material and one or more opaque layers, this is not
Hyaline layer is applied at least side of transparent polymeric support.It, can if opaque layer to be applied to the two sides of transparent substrate
To form fully transparent window by omitting the opaque layer in window area on transparent substrate two sides.
Hereinafter referred to the partially transparent or translucent area of " half-window " is by omitting the only secure file in window area
Side on opaque layer can on two sides with opaque layer polymer secure file in be formed so that " half-window " is no
It is fully transparent but sunlight is allowed to pass through without allowing that object can be clearly seen by half-window.
Alternatively, substrate can be formed by being substantially non-transparent material (such as paper or fibrous material), without saturating
To form transparent window or translucent half-window region in the insert insertion notch or recessed paper or fiber base material of bright plastic material.
Opaque layer
One or more opaque layers can be applied to transparent substrate to increase the opacity of secure file.It is opaque
Layer makes LT<L0, wherein L0The light quantity being incident upon on file, and LTIt is the light quantity through file.Opaque layer may include each
Any one or more of kind opaque coating.For example, opaque coating may include the crosslinkable polymeric for being dispersed in thermal activation
The adhesive of object material carries intracorporal pigment, such as titanium dioxide.Alternatively, the substrate of transparent plastic material can be clipped in
Opaque paper layer or with marking the other parts that then can be printed or be otherwise applied to or substantially opaque
Material between.
Display element
One or more display elements can be applied to the substrate of safety device.As it is used herein, term " display
Element ", which refers to, to be focused the light into or makes light in the element and device of true focal point constructive interference, or is placed on before image source
Selectively to show the device of the different piece of image source.Display element includes refracting element, and incident light is focused on very
True focus in real focal plane, and also specific direction will be collimated to from the light of any point scattering in focal plane.Display member
Part further includes transmission diffraction lens, zone plate etc., they lead to diffraction light constructive interference at desired actual focal spot of transmission.
Display element further includes sampling screen or disparity barrier, to show stereo-picture or multiple view picture to user.When putting
When setting upper on one side of transparent base, samples screen or disparity barrier and is made of a series of layer of material with accurate slits,
Each eye is allowed to see the different piece of image-forming component on the other side of substrate, therefore generated with being similar to biconvex lens
The parallax of effect creates sense of depth.
Detailed description of the invention
It reference will be made to only the preferred embodiment that attached drawing is described by way of example now, in the accompanying drawings：
Fig. 1 is the schematic diagram for the one embodiment for the equipment for manufacturing a part of secure file online；
Fig. 2 is the sectional side view of the secure file manufactured by the part of the device fabrication of Fig. 1；
Fig. 3 to Fig. 5 is the first reality of the prior art micro-optic device of a part to form secure file shown in Fig. 2
Apply the isometric view of example；
Fig. 6 shows the isometric view of micro-optic device shown in Fig. 3 to Fig. 5 and is generated not by the micro-optic device
That enlarged drawing；
Fig. 7 to Fig. 9 is the second reality of the prior art micro-optic device of a part to form secure file shown in Fig. 2
Apply the isometric view of example；
Figure 10 shows the isometric view of micro-optic device shown in Fig. 7 to Fig. 9 and is generated not by the safety device
That enlarged drawing；
Figure 11 and Figure 12 is the isometric top view of the first embodiment of micro-optic device according to the present invention respectively and looks up
Figure；
Figure 13 shows the isometric view of micro-optic device shown in Figure 11 and Figure 12 and is generated by the micro-optic device
Two More's enlarged drawings；
Figure 14 and Figure 15 is the isometric top view of the second embodiment of micro-optic device according to the present invention respectively and looks up
Figure；
Figure 16 shows the isometric view of micro-optic device shown in Figure 14 and Figure 15 and is generated by the micro-optic device
Two More's enlarged drawings；
Figure 17 and Figure 18 is the isometric top view of the 3rd embodiment of micro-optic device according to the present invention respectively and is somebody's turn to do
The enlarged view of a part of micro-optic device；
Figure 19 is the sectional side view of the fourth embodiment of micro-optic device according to the present invention；
Figure 20 and Figure 21 is the isometric top view of the 5th embodiment of micro-optic device according to the present invention respectively and looks up
Figure；
Figure 22 and Figure 23 is namely for the lens in one or more embodiments of micro-optic device according to the present invention
With the bottom view and top view of the arrangement of image-forming component；
Figure 24 and Figure 25 is the isometric top view of the sixth embodiment of micro-optic device according to the present invention respectively and looks up
Figure；
Figure 26 to Figure 29 is the top and bottom perspective views of micro-optic device shown in Figure 24 and Figure 25；
Figure 30 and Figure 31 shows one of the 7th and the 8th embodiment for being used separately as micro-optic device according to the present invention
The example of the sampling screen divided；
Figure 32 is the lens element to form a part of one or more embodiments of micro-optic device according to the present invention
Ray trajectory model；
Figure 33 and Figure 34 is two examples in one or more embodiments for micro-optic device according to the present invention
Property image-forming component design；And
Figure 35 is that external coating is applied in one or more embodiments for micro-optic device according to the present invention
The integrally-built sectional side view of image-forming component and lens element.
Specific embodiment
Fig. 1 shows the example devices 10 of a part for manufacturing exemplary file 12 online described in Fig. 2.Such as
The continuous coiled material 14 of the translucent or transparent material of polypropylene or PET is subjected to gluing at the first processing station 16 for including roll assembly
Close promotion process.Suitable adhesion promotion process is flame treatment, Corona discharge Treatment, corona treatment etc..
Adhesion-promoting layer 18 is applied at the second processing station 20 for including roll assembly.Suitable adhesion-promoting layer is special
Suitable for promoting the layer of the bonding of UV curable coating and polymer surfaces.Adhesion-promoting layer can have UV cured layer, based on molten
Layer, water-base or these any combination of agent.
At the third processing station 22 for further including roll assembly, radiation-sensitive coating is applied to the table of adhesion-promoting layer 18
Face.It can change via its of flexible version printing, intaglio printing or screen printing process and other printing process and apply radiation-sensitive
Feel coating.
Radiation-sensitive coating is only applied to the safety element region 24 on first surface 26, wherein including lens cells by positioning
The overall structure 28 of the cyclic array of the cyclic array and/or image-forming component of part.Safety element region 24 can use item
The form of band, the discrete patches of simple geometric shape form or more complicated graphic designs.
Although it is at least partly liquid that radiation-sensitive coating, which is still, handled at fourth process station 30 it with
Form overall structure 28.In one embodiment, processing station 30 includes in the form of UV curable ink that safety is first
Part structure (such as overall structure 28) is impressed into the roller platen 32 in radiation-sensitive coating.Cylindrical stamping surface 34 has and wants
The corresponding surface relief structure of shape of the overall structure 28 of formation.In one embodiment, surface relief structure can make
Mirror element array and/or imaging element array orientation in machine direction, transverse to machine direction, or with machine direction at
In the multiple directions of certain angle.Equipment 10 can form lenticule of various shapes and micro- image-forming component.
The cylindrical stamping surface 34 of roller platen 32 can have the repeat patterns or embossment construction of surface relief structure
Structure may be positioned such that independent shape corresponding with the shape in safety element region 24 on substrate 36.Roller platen 32 can have
There is the diamond stylus by appropriate cross section, or carved by Direct Laser, or is floating by the surface that chemical etching is formed
Carving structure or surface relief structure can be provided by least one the coining gasket 37 being arranged on roller platen 32.At least one
A coining gasket can be attached via adhesive tape, tape, fixture or other mounting techniques appropriate.
UV curable ink and the cylindrical of roller platen 32 on substrate are imprinted by the UV roller 38 at processing station 30
Surface 34 is in close contact, so that liquid UV curable ink flows into the surface relief structure of cylindrical stamping surface 34.At this
Stage, UV curable ink are exposed to UV for example by the transmission of substrate layer 36 and radiate.
It is including other roll assembly 40 and 42 in the case where security element constructions 28 are applied to file substrate 36
One or more extra plays are applied at downstream processing station.Extra play can be transparent or coloring coating and apply as part
Layer is applied as continuous coated or both adjusting.In a preferred method, extra play is opaque layer, in addition to pacifying
Except the region of full component structure, which is applied on one or two surface of substrate 36.
Fig. 2 shows the secure files of part manufacture, are formed with array of lens elements and/or imaging element array
Overall structure form embossment security element constructions 28.These secure files include that polymer material (preferably has the
The axial orientation polypropylene (BOPP) on one surface 26 and second surface 44) transparent substrate.In addition to wherein security element constructions 28
It is applied to except the window area 52 of first surface 26, opaque layer 46,48 and 50 is applied to first surface 26.
Other than window area 58, opaque layer 54 and 56 is applied to second surface 44.Window area 58 is substantially
It is overlapped with the window area 52 on first surface 26.Printing layer 60 can apply on the opposite side of the substrate in window area 58
To second surface 44.
Fig. 3 to Fig. 6 is shown according to the traditional security device 100 about Fig. 1 and Fig. 2 description and the process manufacture described.It should
Safety device includes being applied to the microlens array of the side of polymer banknote and being applied to the corresponding imaging of the other side of banknote
Element layer.In general, lens element about the process of Fig. 1 and Fig. 2 description by being imprinted.In general, image-forming component is individual
It prints and/or imprints in the process.
In this example, safety device 100 includes being applied to the lenticular lens elements array 102 of the side of substrate 104 and applying
It is added to the corresponding image-forming component 106 of the other side of substrate 104.In general, lens element is stamped.It can print and/or be embossed into
Element.In this example, lens element 102 is cylindrical lens elements and with 63.5 microns of spacing.It is seen by user
Image caused by examining is More's type design of amplification, and image-forming component be made of " icon " array of digital " 5 ", icon and
The spacing of lens element is slightly different, so that lens are by projection Moire enlarged drawing or the number observed by user 110 " 5 "
Image 108 (Fig. 6).
Distance values for icon will determine the amplification coefficient of More's enlarged drawing 108 of digital " 5 ".Sound for icon
Tone pitch will also determine the 3D depth perceived in More's enlarged drawing of digital " 5 ".It can choose icon spacing, so that More is put
Big image can seem to swim in banknote above or below.Only by from the lens side of substrate 104 watch feature can from
To More's enlarged drawing.If feature is watched from image-forming component side, it can be observed that icon arrays.However, too because of icon
It is small, so naked eyes can not distinguish.This means that the reverse side of safety device will not generate the recognizable any optical effect of user, and
And the appearance of the safety device on the simulation side can be easy using traditional printed design.In addition, if security feature
Reverse side then can see chromatography from lens element side by chromatography, it means that can damage optical effect (i.e. reduction contrast,
Reduce apparent appearance) so that being less effective to verifying.
Fig. 7 to Figure 10 similarly illustrates traditional polymer banknote lenticule safety device 120 comprising is applied to base
The corresponding hexagon filling battle array of the hexagon filling lenticular lens elements 122 of the side of material 124 and the image-forming component for being applied to reverse side
Column 126.In general, lens element is coining.In general, image-forming component can be with chromatography and/or coining.On substrate reverse side at pixel
Part similarly forms shadow region domain on banknote, typical banknote art work chromatography generally can not be used, without reducing user
The verifying validity of the 128 amplification image-forming components seen from the lens side of feature.Therefore, the shadow region domain comprising image-forming component is difficult
With the rest part integration of the banknote design in the image-side with banknote.
In the context of the present invention, term " filling ", which is intended to indicate that, is wherein disposed with image-forming component and/or lens element
Repeated-geometric patterns.
In one or more embodiments of the present invention, the display element of such as lens element is applied in transparent substrate
On two sides, and image-forming component may be applied on the two sides of substrate, so that the display element on the first side of substrate is for showing
Show the image-forming component in second side of substrate, and the display element in second side of substrate is used to show the first side of substrate
Image-forming component.Preferably, the display element on every side and image-forming component occupy the same area of safety device.
Figure 11 to Figure 13 depicts an exemplary embodiment of safety device 140, wherein cylindrical lenticular lens element
Array 142 be applied to the first side of substrate 144, and array 146 may be applied to the other side of substrate 144.
Imaging element array 148 in the form of " icon " of digital " 7 " is applied to array of lens elements 142.Similarly,
In this case there is the imaging element array 150 of " icon " form of digital " 5 " to be applied to array of lens elements 146.
In this example, the array 142 and 146 of lens element is applied to substrate 144 by imprinting, and 148 He of array of image-forming component
150 can be printed on lens element or or be applied by coining.It is stamped in both lens element and image-forming component
Embodiment in, individual imprint step can be used to imprint lens element and image-forming component, or alternatively, including saturating
The single overall structure of the picture structure of the lens arrangement and image-forming component of mirror element can imprint in a single step.
Image-forming component on every side of safety device 140 is located at the lens element on the other side of safety device 140
In depth of focus.In this arrangement, More's enlarged drawing is observed from the two sides of substrate 144.The enlarged drawing 152 from one of icon " 5 "
Side seems to swim in above banknote, and when being watched from the other side of banknote 158, the enlarged drawing 156 of icon " 7 " seems
It swims in above banknote.
Figure 14 to Figure 16 depicts the different embodiments using the hexagon filling lens for being applied to substrate two sides.In the reality
It applies in example, safety device 170 includes transparent substrate 172, the hexagon filling round lens element battle array on the first side of substrate
Column 174, and the hexagon filling round lens element arrays 176 on the other side of substrate 172.The array of image-forming component
178 are applied to array of lens elements 174, and the array 180 of image-forming component is applied to the lens cells on the other side of substrate
The array 176 of part.Array of lens elements 174 is used to that the imaging element array 180 on the substrate other side to be sampled and be amplified,
And array of lens elements 176 is for being sampled and being amplified to the imaging element array 178 for being applied to array of lens elements 174.
In this embodiment, More's enlarged drawing is observed from the two sides of substrate.It is watched when from the side of safety device 184
When, the enlarged drawing 182 of icon " 5 " seems to swim in above banknote, and when being watched from the other side of safety device 186,
The enlarged drawing 185 of icon " 7 " seems to swim in above banknote.
Again, image-forming component can be printed or imprinted in corresponding array of lens elements.When imprinting image-forming component, this
It can occur simultaneously with the coining of lens element or occur as independent step.
It should be appreciated that the filling of hexagon shown in lenticular lens element shown in Figure 11 to Figure 13 and Figure 14 to Figure 18
Round lens element is only two examples of suitable display element.In other embodiments of the invention, display element can
Including disparity barrier or sampling screen, they can be printed or be stamped on the one or both sides of substrate, by selectively
Show the part of imaging element array on the other side of substrate, allow viewer from that unilateral observation stereo-picture of substrate or
Multiple view picture or general image or interlaced picture or More's enlarged drawing.When display element is lens element, application is depended on
Many different profiles can be used, including round, oval, parabola shaped and conical.Lens element can have as above
It is described in a first direction in profile extend in a second direction to form cylindrical body and as shown in Figure 11 to Figure 13.It can
Alternatively, the profile of concentrating element can be rotated around with the vertically extending axis of substrate surface, if Figure 14 is to depicted in figure 16
Situation in embodiment.
Two embodiments that Figure 11 describes into Figure 16 are related to refractive lens element, however other suitable display element packets
Include Fresnel-lens elements.Other suitable display elements include diffractive lens element and diffraction zone panel element, are caused in base
The constructive interference of the light at or near image-forming component on the material other side.
Preferably, when lens element diffraction, they are coated with transparent material layer, which has and lens cells
The different refractive index of part, to prevent via electroforming machinery replica lens element, and prevent such as sweat liquid and dirt into
Enter, otherwise can extinguish or reduce the display effect of lens element.
Except through coining apply except, can also by printing or as foil by lens element or image-forming component or comprising
The overall structure of both lens element and image-forming component is applied to substrate.
As described above, multiple display elements can form sampling screen, with multiple at pixel on the other side to substrate
Part is sampled.In this case, multiple display elements can be the grid lines to form disparity barrier, enable to from
Element viewing solid or more views or entirety or interlacing or More's enlarged drawing.
Display element can be filled in any convenient manner, so that they form the six of light transmission, refraction or diffraction element
Side shape or other geometric arrays.
Display element when to sample screen form can fill in any convenient manner, so that they form light transmission
The hexagon of element or other geometric arrays.
Easily, image-forming component on one side of the substrate is positioned substantially in single imaging plane by picture structure,
As the situation in Figure 17 and embodiment depicted in figure 18.As can be seen from these figures, including the saturating of lens element
The overall structure of the picture structure of mirror structure and image-forming component is applied to the two sides of transparent substrate.Describe in Figure 17 and Figure 18
Safety device 200 includes overall structure 202, which includes lens arrangement 204, which includes and figure
As the hexagonal array for the round refractive lens element that structure 206 integrates, which includes in the form of digital " 7 "
" icon " array 208.Similar overall structure 210 is applied to the other side of substrate 216, which includes：Including
The lens arrangement 212 of array of lens elements 214；And the picture structure (not shown) including image component array.
Especially as can be seen from Figure 18, image-forming component is located in single plane by picture structure 206, and by appropriate
The depth of the transparent substrate 216 and lens element 214 on the other side of substrate is designed, image-forming component 208 can be placed on substrate
In the depth of focus of the lens element 214 of the other side.
In contrast, from Figure 11 to Figure 16 in the image-forming component that can be seen that in these examples of the embodiment described do not have
It is exactly in horizontal imaging plane, but occupies depth or with applying with them or the lens that are integrated into other ways
The corresponding shape of degree of sagging.Depending on the lens used on the other side of image, this can cause fuzzy optics to be imitated
Fruit, although can be reduced or eliminated by using the lens of the depth of focus with the depth substantially surrounded by picture structure fuzzy.
Ray trajectory model 220 shown in Figure 32 characterizes the saturating of the lens width/spacing, 10.8 microns with 54 microns
The example lens element of mirror degree of sagging, 104 microns of nominal focus depth and 8 microns of effective depth of focus.If it is another to be located at substrate
Picture structure on side is located at away from 96 to 104 microns of lens apex, then clearly optical effect image will be generated to user.
In Figure 17 and exemplary embodiment depicted in figure 18, it can be seen that picture structure is used for relative to surrounding
Lens increase image-forming component.In other embodiments of the invention that picture structure is stamped, image-forming component can be positioned at
The identical height of circumjacent lenses element, relative to circumjacent lenses component depressions or as plane pattern.In addition, if at pixel
Part is stamped, then they can be embossed to diffraction grating, light diffusion pattern or any other suitable structure that can be needed
Pattern, the lens element on the other side will pass through safety device generates the optical effect that can be observed by user.
In Figure 11 into embodiment depicted in figure 18, image-forming component and lens element on the every side of substrate occupy peace
The same area of full device, and therefore lens or sampling member will can be depended on by the contrast for the projected image that user observes
Ratio that the ratio in the region that part occupies and corresponding image-forming component occupy and reduce.For this reason, selected image
Design is important, and the design in small percentage region is occupied for each lens element, and occupies each lens element
The design in larger proportion region is compared, and brighter dual-side image will be generated.
Figure 33 and Figure 34 respectively depicts the image-forming component design 222 and 224 being each located in a round lens element.
As can be seen that image-forming component 222 occupies the smaller regional percentage of lens element internal ratio image-forming component 224, thus have at
More's enlarged drawing of the lens element projection more high contrast of element 222.
It care is taken to ensure that the lens element on the every side of substrate will not carry out More's amplification to lens element on the opposite sides.
The periphery edge of lens element has contrast, and if periphery edge is amplified especially if they are refractions,
Then the clarity of More's enlarged drawing will reduce.By by the lens element design on substrate side at have and the substrate other side
On the substantially the same spacing of lens element, the problem can be alleviated.This will generate lens element (including its periphery edge)
More's enlarged drawing, the image will be much larger than security feature itself region.Visual angle and banknote two sides depending on user
The relative phase of lens element, the enlarged drawing (including its periphery edge) of lens element be at a visual angle it is sightless,
This means that it will not interfere optical effect image.For example, in one or more embodiments, it can be in the two sides of safety device
It is equal to 63.5 microns of lens using spacing.
It alternatively, can by selecting the lens spacing on the side substantially different with the lens spacing on the other side
Amplify to avoid the More of lens element.This will generate the moire pattern of lens element, they are very small, so that naked eyes can not
It distinguishes.Lens element (including their periphery edge) will appear as uniform background gray level, and therefore they can slightly
Reduce the contrast of optical effect image.For example, in one or more embodiments, can be used on the side of safety device
Spacing is equal to 63.5 microns of lens, and on another side using the lens with 51.0 microns of spacing.This arrangement can generate
Moire band, period are equal to 63.5x 51.0/ (63.5-51.0) and are equal to 259 microns.This band will be very small and be difficult to use
Naked eyes distinguish, and faint background gray level will be shown as in optical effect image.In this example, it optionally adjusts
The focal length (for example, passing through the suitable refractive index of material selection wherein to imprint lens) of lens is to ensure the lens on every side
It sufficiently focuses on the image-forming component on opposite sides of banknote.
Above-mentioned comment related with the spacing of the lens on safety device two sides is also applied on the opposite side of transparent substrate
Lens skew and refractive index.In other words, can use on the side of safety device has with the lens on the other side
The lens of substantially the same or visibly different spacing, skew or refractive index so that the amplification moir é pattern of lens element reduce,
It minimizes or eliminates.
In Figure 11 into embodiment depicted in figure 18, image-forming component is applied to or is embossed to one of lens element
Point.However, image-forming component to be applied to the two sides of substrate first in another embodiment shown in Figure 19, and then will
Lens element is applied on the top of image-forming component.It will be apparent from this figure that example safety device 240 includes substrate 242,
The substrate 242 has the imaging element array 244 for the first side for being applied to substrate 242 and is applied to the image-forming component battle array of second side
Column 246.For example, by being imprinted with transparent UV ink, and then using thin layer colour ink set by being imprinted with colour UV ink
Print, or by with the picture structure in colored UV curable ink joint sheet, then optionally from the non-image areas of gasket
Domain removes UV curable ink, and then UV is solidified and optionally enhanced picture structure from gasket using peeling layer,
Imaging element array 244 and 246 can be applied,
Then the lens arrangement including lens element is applied on the top of picture structure.Therefore, including for at
The array 246 of element is sampled and the lens arrangement 248 of series of lens elements that amplifies is formed in the battle array of image-forming component
On column 244, and lens arrangement 250 is applied on the array 246 of image-forming component, and forms a part of lens arrangement 250
Lens element for the imaging element array 244 on the substrate other side to be sampled and is amplified.
The embodiment that Figure 11 describes into Figure 19 all includes：Lens element on the first side of substrate, to substrate
Image-forming component in second side is sampled and is amplified；And the lens element in second side of substrate, to the of substrate
Image component on side is sampled and is amplified, wherein all lens elements and image-forming component occupy entire safety device.
However, in other embodiments, safety device can be made of more than one region, wherein each region includes
Cover at least part of the first side of at least part of substrate of second side of substrate.This is depicted in Figure 20 and Figure 21
Kind arrangement, in which it can be seen that, safety device 270 includes four individual regions 272,274,276 and 278.
Although safety device includes lens element and image-forming component on the two sides of substrate, some regions are only in side
Upper includes an imaging element array, and on another side includes a corresponding array of lens elements.The of safety device 270
One region 272 includes：Lens element group 280 is applied to the double of the hexagon filling of the first side of substrate in this case
Lenticular elements；And it is applied to the covering group 282 of the image-forming component of second side of substrate.The second area of safety device 270
274 further include the lens element and image-forming component on opposite sides positioned at substrate, however, in this case, region 274 includes
It is applied to the imaging element group 284 of the first side of substrate, the imaging element group 284 covering is applied to the lens of second side of substrate
Element group 286.
The region 276 of safety device 270 includes first group of lens element 288, in this case to be applied to substrate
The cylindrical lens elements of first side, this first group 288 covers the lens element group 290 for being applied to second side of substrate.In addition,
Apply imaging element group 292 to be formed using in the lens element 290 in second side of substrate or as one of lens element 290
Point.In other words, region 276 includes the lens element group for being applied to the opposite side of substrate, but image-forming component is applied only to this
One of a little sides.
Similarly, the region 278 of safety device 270 includes：It is applied to the lens element group 294 of the first side of substrate, it should
Lens element group 294 covers the lens element group 296 for being applied to second side of substrate；And additionally, imaging element group 298,
It is provided in the lens element group 294 for the first side for being applied to substrate, or as a part of lens element group 294.Change sentence
It talks about, region 278 includes two lens element groups for being applied to the apparent surface of substrate, but only one imaging element group is applied to
One of two lens element groups.
It will be appreciated that though in the presence of the lens cells for being applied to any surface in each region in four regions 272 to 278
Multiple groups of variation of part and image-forming component, but safety device 270 still including substrate two sides on display element and at pixel
Part.
It should be appreciated that the optical effect image on every side of substrate occupies the embodiment of the present invention needs of same area
A part of the image-forming component structure on each lens element and the same side on side is integrated.In the case where this generation, subtract
The effective coverage for executing the independent lens element of each of display effect is lacked.It designs, can also drop depending on used image
The contrast of low gained optical effect image and fidelity.It is especially true when being designed using entirety or interlaced image, because this
The image-forming component of kind design may occupy most of region of some lens elements, and the optical effect figure of these lens projects
The corresponding portion (with reduced zone of action) of picture can have the contrast and clarity of reduction.
The arrangement of the lens element and image-forming component that can solve the problem is shown in Figure 22, which shows lens
Staggered 301 (as seen by substrate to bottom side) of the image component of the number " 7 " on element and substrate bottom side,
And staggered the 303 of the image component of the number " 5 " on lens element and substrate top side, staggered the two overlapping make
The lens element obtained on every side accurately covers the image-forming component on the other side, puts so as to cause from the visible More in every side
Big effect.In this arrangement, the whole region of each lens element is for generating display effect, to generate good image
Fidelity.In addition, 50% characteristic area on the every side of substrate is filled with lens, therefore manufactured with respect to the prior art
Equivalent single side lens characteristics, picture contrast reduce.
Arrangement shown in Figure 22 and Figure 23 requires lens on side and image relative to the lens and figure on the other side
As highly precisely positioning (ensure that the lens on side will be sampled and be amplified to the image on the other side)；In fact,
Required alignment tolerance is a part of a lens element width.Existing manufacturing process cannot achieve this tolerance.It solves
Another embodiment of the problem is described in Figure 24 into Figure 29.
In Figure 24 into Figure 29, it should be understood that on the every side of substrate amplification optical effect image by lenticule " as
Element " forms, the corresponding image-forming component on the micro lens/amplification other side.It is another only can to amplify substrate in concentrating element
There is " pixel " in the case where a part of image-forming component on side.
Embodiment of the Figure 24 into Figure 29 includes the distribution of lens element and image-forming component on each side, ensure by
The enlarged drawing effect that lens on every side generate will be always made of the pixel of substantially the same quantity, but regardless of lens cells
Registration of the image-forming component that part focuses or amplifies relative to them in substrate plane in X and Y-direction.Which ensure that produced
Image it is consistent from a banknote or other secure files to next banknote or other secure files on brightness and contrast.
In typical roll-to-roll manufacturing process, registration tolerance can be the magnitude of +/- 0.25mm, this is than for banknote
The size of exemplary microlens is much bigger.As a result, the registration of lens element and image-forming component cannot pass through improvement in X and Y-direction
Manufacturing technology control.In order to generate consistent image, i.e., with the image of same pixel number, be intended to provide lens element and
The arrangement of image-forming component, will generate the amplification pixel of fixed quantity, and it is unrelated to be registrated " error " with any in X and Y-direction.
Embodiment of the Figure 24 into Figure 29 illustrates this point.Safety device 310 includes the lens cells on the first side 312
Part and image-forming component are that hexagon is filled and with 56 microns of spacing.It is band that lens and image-region, which interlock, all
Such as exemplary band 314 and 316.Lens band and image band respectively occupy 50% area on the side 312 of substrate 318
Domain.Lens element and image-forming component on the other side 320 of substrate 318 are also what hexagon was filled, the opposite side with substrate 318
312 orientations having the same, and with 56.3 microns of spacing.Lens element and image-forming component (are such as shown with staggered band
Example property band 322 and 324) arrangement, but 60 degree are rotated relative to the band 314 and 316 on the side of substrate 312.
In this arrangement, the lens on side 312 will carry out More's amplification to the 50% of image on side 320.Cause
This, More, which amplifies pixel, will occupy 50% × 50% overall area for being equal to 25%.Therefore, 100% area is occupied in wherein image
In domain and the 100% equivalent single side lens characteristics that are amplified of image-forming component, the contrast in More's enlarged drawing will be pair
Than the 25% of degree.Therefore, wherein each lens element on side not with a part of the image-forming component on the same side integrate
The two-sided lens feature for being registrated tolerance will generate the image with contrast more smaller than equivalent single side feature.However, substrate
Two sides will generate optical imagery effect for using and verifying banknote or other secure files.
Lens on side 320 will carry out More's amplification to 50% image-forming component on side 312.Therefore, Mo Erfang
Big pixel will occupy 50% × 50% overall area for being equal to 25% again.100% region and 100% are occupied in wherein image
The equivalent single side lens characteristics that are amplified of image in, the contrast in More's enlarged drawing will be the 25% of contrast again.
In the filling of lens element and image-forming component on the two sides of safety device 310 312 and 320 and side at
On element and the other side to the corresponding relationship between the lens element that these image-forming components are sampled and are amplified Figure 24 extremely
It is visible in Figure 29.
The variation of above-described embodiment that Figure 24 describes into Figure 29 may include：
(i) multiple regions being applied to lens on polymeric substrate two sides；And
(ii) apply image in the multiple regions on polymeric substrate two sides；And
(iii) lens on every side and image-region are separated and by positioning/distributions, so that saturating on every side
Mirror focuses on another side/amplifies the image of substantially fixed ratio, mutual just but regardless of their two in substrate plane
Hand over relative phase/offset in direction；
(iv) preferably, fixed proportion 25%, and two mutually orthogonal directions are for applying lens and/or figure
The roll-to-roll process of picture or for applying lens and/or image sheet material feeding during machine direction and transverse direction；
(v) preferably, the lens on every side and image-region are by lens area staggered with the band of image-region
Band composition-band wherein on side is not parallel with the band on the other side；
(vi) if using Rectangle filling lens on two sides：Preferably, on the staggeredly band and the other side on side
Staggeredly band is orthogonal；
(vii) if filling lens using hexagon on two sides：Preferably, the staggeredly band on side is relative to another
Staggeredly band on side rotates 60 degree (in plane of substrate)；
(viii) if using cylindrical lens on two sides：Preferably, on the staggeredly band and the other side on side
Staggeredly band is orthogonal；
(ix) if using cylindrical lens on two sides：Preferably, the cylinder on the cylindrical shaft and the other side on side
Axis is orthogonal.
In one or more embodiments, the spacing for selecting the lens element on every side and the lens element on side
Relative to the orientation of the lens element on the other side, so that
(iii) More's enlarged drawing of lens element is greater than the optical effect image on every side；Or
(iv) More's enlarged drawing of lens element is less than the recognizable image of naked eyes.
Preferably, More's enlarged drawing of lens element is less than 0.1mm.
Spacing needed for known More amplifies More's magnifying power needed for formula calculates generation and relatively skew can be used.
It can be used for for example, following More amplifies formula (being derived from Amidror, The Moire Phenomenom, 2000) for each
On side give lens spacing, and between the lens on every side it is given relatively skew (in following formula, T1And T2It is
Refer to the lens spacing on every side, α is angle of skew, and T relativelyMIt is the size of More's enlarged drawing) amplify to calculate More
The size of image：
Display element of the invention can also be provided in the form of the sampling screen on the one or both sides that substrate is arranged in.
Each sampling screen may include parallel lines grid 313 as shown in Figure 30 or rectangle as shown in Figure 31 or six sides
The grid 315 in the hole of shape arrangement, light can pass through the grid 315.The environment scattered from the image-forming component for being located at the substrate other side
Light reaches viewer after passing through sampling screen, generates the optical effect image that observer can see.From every line (or hole)
Repeat distance (spacing) to next adjacent lines (or hole) is defined and is sampled to the image-forming component on the substrate other side
Frequency.As visual angle changes, sampling screen samples the different piece of the image-forming component of lower section, just as lenticule.
Preferably, it samples the repeat distance (spacing) of screen and utilizes lenticule rather than sample the lenticule member of the equivalent structure of screen
The repeat distance (spacing) of part is substantially the same.
The pattern of line or hole can be left in non-printed areas by being printed on, or alternatively by coining wherein non-
The structure in line or hole is formed in imprinting area to realize sampling screen.If sampling screen is coining, stamping structure can be with
Structure or diffraction grating are extinguished by light or high roughness surface texture forms.If sampling screen is stamped, screen knot is sampled
Structure can be formed by integrally-built a part of the image-forming component structure composition integrated with sampling screen construction.Figure 30 and Figure 31
Example-the dark area for showing possible sampling screen depicts the region that can be printed or change by imprinting.With use
Refractive micro lenses are compared, and sampling screen generally produces the optical effect image with relatively small picture contrast/brightness, because
For the light for the small percentage that each sampling screen elements are scattered to eyes projection from each image-forming component.
In the case where sampling screen as display element, it should be noted that ensure that each sampling screen will not be in the another of substrate
Amplify display element on side.Previously described same procedure, i.e., the spacing of display element and/or relatively askew between display element
Oblique appropriate selection can be used to ensure that the More that display element will not be occurred when using sampling screen is amplified.
In the above-mentioned all embodiments for using coining display element and image-forming component, display element and/or image-forming component
It can be coated with layer material, which has the refractive index different from UV solidified resin, the shape in the UV solidified resin
At display element and image-forming component.As in the example in Figure 35 as it can be seen that being applied to this thin layer 340 including lens element
342 and image-forming component 344 in the structure of one or two image-forming component can be prevented to be replicated by electroforming because with surrounding
It is compared with adjacent lens element, the surface texture of image component is flat now.If the layer and refractive lens element 342
Degree of sagging compared to sufficiently thin, then will not imaging function to lens element or focal length have an adverse effect.
If the lens element used is diffractive lens element, these lens elements can also be coated with layer material,
The layer material has the refractive index different from the refractive index of UV solidified resin of diffractive lens element is formed.In such case
Under, the depth of diffraction lens structure is adjusted to adapt to the thickness of layer material, which has and form diffraction lens member
The different refractive index of the refractive index of the UV solidified resin of part, so that being maintained at mutually long dry at the required focal length of diffractive lens element
It relates to.
Another benefit of this arrangement is to prevent sweat or other liquid from filling image and/or lens arrangement.For example, such as
Fruit picture structure is made of the diffraction grating for generating colored enlarged drawing, and if fruit structure is full of water, then the image amplified will be a large amount of
It loses, because water has refractive index similar with UV coining resin structure.Similarly, if the lens arrangement used is diffraction
, if fruit structure be full of water, then the focusing function of lens will largely be lost because lens will be unable to the phase of correct modulation light with
Ensure the constructive interference in focal point.
2D as described herein or 3D display element and image-forming component can be formed by any suitable manufacturing process, including with
Lower non-restrictive illustrative security printing process：Offset printing, foil application, silk-screen printing, intaglio printing, letterpress and external coating.
In the embodiments described herein, coining gasket on the one or both sides of substrate for imprinting overall structure, including focusing member
The focusing structure of part and the picture structure of image-forming component.Many different technologies for manufacturing this coining gasket are described as follows：
Laser micromachining methods/laser lithography
Past has processed the 3-D micro-structure of the master mold including processing for mold using excimer laser micro Process
(see, for example,：Jolic KI, Ghantasala MK and Harvey EC, " excimer laser process of corner cube structure ",
Journal of Micromechanics and Microengineering, Vol.14, no.3 (2004), pp.388-397).
Past also manufactured using excimer laser refractive microlens array (company done so another example is
Optec s.a., ZAE Le Crachet, Avenue des Nouvelles Technologies, 53, B-
7080Frameries Belgium)。
Therefore, the refractive micro lenses that the laser micro-machining technology based on mask projection (i.e. laser ablation) can be used for integrate
It is processed into the material of such as polycarbonate, with micro- image laser to form master mold.Micro- image-forming component can be processed into master mold
Sunk area.They can also be processed into micro-structure surface texture.Then master mold can be electroplated, to form coining metal
Gasket.
Alternatively, lenticule (concavees lens or convex lens or diffraction lens) can be pre- in the material of such as polycarbonate
System (uses such as hot padding of established method -).Then the laser micro-machining technology based on mask projection can be used will be micro-
Image Direct Laser is worked into lens that (micro- image-forming component can be processed into flat sunk area；They can also be processed into
Micro-structure surface texture) to complete integrated master mold.Then master mold can be electroplated to form coining metal gasket.
Alternatively, it can be used using the laser micro-machining technology of mask projection and manufacture the image component of integrated morphology
It is as follows：(i) with dry film photoresist layer coated lens metal mother (concave surface or convex surface or the diffraction with laser processing ability；First
It is preceding to be manufactured using such as electroforming of established technology from lens master mold)；(ii) laser micro Process 2-D in dry film photoresist is used
Picture pattern is with the following lens metal layer of exposure (that is, it is against corrosion to completely remove dry film in region corresponding with picture pattern
Agent)；And the metallic region of (iii) chemical etching exposure is so as to these area depressions and/or veining-or alternatively be electroplated
Exposed region is so that these regions extend in adjacent lens surface.
UV photoetching technique
UV photoetching technique can also be used for the master mold of manufacture integral micro-lens and micro- picture structure.This can be realized as follows：(i)
With (preferred planar) photoresist layer coated lens metal mother, (concave surface or convex surface or diffraction-are previously used established
Technology such as electroforming is manufactured from lens master mold).(ii) the 2-D picture pattern in photoresist is carried out using mask aligner
UV exposure；(iii) chemical development is exposed to the photoresist layer of UV, so as to the exposure lens in the region of 2-D picture pattern
Metal layer below master mold；(iv) chemical etching exposure metallic region so that these area depressions and/or veining-or
Exposed region alternatively is electroplated so that these regions extend in adjacent lens surface.
Direct Laser write-in
It is integrated it is contemplated that Direct Laser wiring method (maskless laser lithography, gray tone photoetching) can also be used for manufacture
Lenticule and micro- picture structure, the picture structure of lens arrangement and diffraction including refraction or diffraction.These methods are related to X-
Y raster scanning focuses on the laser beam on photoresist surface.According to the required constructional depth at each point, the agent of laser beam
Amount is spatially varying in X and Y.Then develop photoresist to generate the surface 3-D.Example machine with the technology is
DWL 425 (Heidelberg Instruments, Germany).
Using the terms "include", "comprise", " having included " or when " containing " in this specification (including claim),
They are to be interpreted as specifying the presence of the feature, integer, step or component.But one or more of the other spy is not excluded the presence of
Sign, integer, step or component or combinations thereof.
It should be understood that being provided by way of example only the present invention is not limited to specific embodiment as described herein.The scope of the present invention
It is defined by the following claims.
Claims (24)
1. a kind of micro-optic device, including：
Transparent substrate；
Multiple first lens elements on the first side of the substrate amplify the first imaging in second side of the substrate
Element；And
Multiple second lens elements in described second side of the substrate, amplify on first side of the substrate
Second image-forming component, wherein the multiple first and second lens element and the first and second image-forming components by with image-region
The staggered lens area of band band composition.
2. micro-optic device according to claim 1, wherein the lens element and image-forming component on every side are each other
It separates and is scattered in so that the lens element on every side amplifies the imaging of substantially fixed ratio on the other side
Element, no matter relative phase or offset in their two mutually orthogonal directions in the plane of the substrate.
3. micro-optic device according to claim 2, wherein the band on side not with the institute on the other side
It is parallel to state band.
4. micro-optic device according to claim 3, wherein the lens element on two sides on two sides by rectangle
Filling, and the staggeredly band on side is orthogonal with the staggeredly band on the other side.
5. micro-optic device according to claim 3, wherein the lens element on two sides by hexagon is filled,
And the staggeredly band on side is in the plane of the substrate relative to staggeredly band rotation described on the other side
Turn 60 degree.
6. micro-optic device according to any one of the preceding claims, wherein the lens element on two sides is round
Cylindrical lens, and the staggeredly band on side is orthogonal with the staggeredly band on the other side.
7. micro-optic device according to any one of claim 1 to 6, wherein multiple lens elements are to multiple
The lens element that the image-forming component is sampled and amplified.
8. according to claim 1 to any one of 6 or micro-optic device as claimed in claim 7, wherein the lens element is
Refraction and focus light in focus.
9. according to claim 1 to any one of 6 or micro-optic device as claimed in claim 7, wherein the lens element is
Diffraction and cause the constructive interference of light in focal point.
10. micro-optic device according to claim 9, wherein the lens element is coated with transparent material layer, described
Bright material layer has the refractive index different from the lens element.
11. micro-optic device according to any one of claims 7 to 10, wherein the lens element passes through coining shape
At.
12. micro-optic device according to any one of claims 7 to 10, wherein the lens element applies as foil.
13. micro-optic device according to any one of claims 7 to 12, wherein the lens element and image-forming component
Combination make it possible to watch that three-dimensional, more views, interlacing, More amplifies or general image.
14. micro-optic device according to any one of the preceding claims, wherein multiple the first and second one-tenth pixels
Part is formed by printing.
15. micro-optic device according to any one of claim 1 to 13, wherein the multiple image-forming component passes through pressure
Impression at.
16. micro-optic device according to any one of the preceding claims, wherein the image-forming component is coated with transparent material
The bed of material, the transparent material layer have the refractive index different from the image-forming component.
17. micro-optic device according to any one of the preceding claims, wherein the image-forming component applies as foil.
18. according to claim mistake！It does not find to micro-optic device described in any one of 17 in reference source, wherein described more
A image-forming component is located in the depth of focus of the lens element.
19. according to claim 1 to micro-optic device described in any one of 18, wherein every side of the substrate it is described
Multiple image-forming components are located in single imaging plane.
20. micro-optic device according to any one of the preceding claims, wherein the lens element and image-forming component
One or more colored ink chromatography.
21. according to claim mistake！It does not find to micro-optic device described in any one of 20 in reference source, wherein selection is every
The spacing of the lens element on side and the lens element on side are relative to the institute on the other side
The orientation of lens element is stated, so that
A. More's enlarged drawing of the lens element is greater than the optical effect image on every side；Or
B. More's enlarged drawing of the lens element is less than the recognizable image of naked eyes.
22. micro-optic device according to claim 21, wherein More's enlarged drawing of the lens element is less than
0.1mm。
23. a kind of safety device including micro-optic device according to any one of the preceding claims.
24. a kind of including according to claim 1 to the secure file of micro-optic device described in any one of 30.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2016100401A AU2016100401B4 (en) | 2016-04-13 | 2016-04-13 | Micro-optic device with double sided optical effect |
| AU2016100401 | 2016-04-13 | ||
| PCT/AU2017/050329 WO2017177276A1 (en) | 2016-04-13 | 2017-04-13 | Micro-optic device with double sided optical effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108883654A true CN108883654A (en) | 2018-11-23 |
Family
ID=56080691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780022861.1A Pending CN108883654A (en) | 2016-04-13 | 2017-04-13 | Micro-optic device with double sided optical effect |
Country Status (11)
| Country | Link |
|---|---|
| US (2) | US10780726B2 (en) |
| CN (1) | CN108883654A (en) |
| AT (1) | AT523214A2 (en) |
| AU (2) | AU2016100401B4 (en) |
| BR (1) | BR112018070881A2 (en) |
| CH (1) | CH713844B8 (en) |
| DE (1) | DE112017001373T5 (en) |
| GB (2) | GB2563764B (en) |
| MX (1) | MX2018012432A (en) |
| RU (1) | RU2018135965A (en) |
| WO (1) | WO2017177276A1 (en) |
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| CN111830723A (en) * | 2020-07-28 | 2020-10-27 | Oppo广东移动通信有限公司 | Transmitting module, depth sensor and electronic equipment |
| CN113296280A (en) * | 2020-02-24 | 2021-08-24 | 宁波激智科技股份有限公司 | Alignment film, interference reduction alignment film and preparation method thereof, laminating alignment film and image recognition module |
| WO2022110878A1 (en) * | 2020-11-24 | 2022-06-02 | 中钞特种防伪科技有限公司 | Optical anti-counterfeiting element and product |
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| DE102017218800B3 (en) * | 2017-10-20 | 2018-11-15 | Koenig & Bauer Ag | Method for producing a security element or security document |
| WO2019076805A1 (en) | 2017-10-20 | 2019-04-25 | Koenig & Bauer Ag | Security element or security document |
| AU2020279477C1 (en) | 2019-05-20 | 2023-08-17 | Crane & Co., Inc. | Use of nanoparticles to tune index of refraction of layers of a polymeric matrix to optimize microoptic (mo) focus |
| CN112505939A (en) * | 2019-08-26 | 2021-03-16 | 昇印光电（昆山）股份有限公司 | Imaging optical film and decorative film |
| DE112020005412T5 (en) * | 2019-12-19 | 2022-08-25 | Ccl Secure Pty Ltd | Micro-optical device for generating an enlarged image |
| TWI777476B (en) * | 2021-03-31 | 2022-09-11 | 幻景啟動股份有限公司 | Stereoscopic image display device |
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Also Published As
| Publication number | Publication date |
|---|---|
| GB2591863A (en) | 2021-08-11 |
| DE112017001373T5 (en) | 2018-11-29 |
| US10780726B2 (en) | 2020-09-22 |
| MX2018012432A (en) | 2019-02-21 |
| AU2017250016A1 (en) | 2018-09-27 |
| GB2563764A (en) | 2018-12-26 |
| AU2016100401B4 (en) | 2017-02-09 |
| GB2591863B (en) | 2021-11-17 |
| AU2016100401A4 (en) | 2016-05-26 |
| RU2018135965A (en) | 2020-05-13 |
| AU2017250016B2 (en) | 2021-11-04 |
| GB202019505D0 (en) | 2021-01-27 |
| US20200376881A1 (en) | 2020-12-03 |
| GB2563764B (en) | 2021-03-31 |
| CH713844B1 (en) | 2021-09-30 |
| WO2017177276A1 (en) | 2017-10-19 |
| CH713844B8 (en) | 2021-11-30 |
| AT523214A2 (en) | 2021-06-15 |
| US20190118571A1 (en) | 2019-04-25 |
| US10987967B2 (en) | 2021-04-27 |
| BR112018070881A2 (en) | 2019-02-05 |
| GB201814221D0 (en) | 2018-10-17 |
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